Button-sewing attachment.



W.. S. da H. H. HOLDAWAAY.

BUTTON SEWING ATTACHMENT.

APLIOATION FILED AUG. 4. 19091 Patented May 2, 1911.

2 SHEETS-SHEET l.

NVENTORS.'

THE NnRms PE1-ERS co., wAsHmcTuN, v, c,

WLS. & H. H. HOLDAWAY. BUTTON SEWING ATTACHMENT.

APPLICATION FILED AUG. 4, 1909.

y Patented Mayz, 1911.

2' SHEETS-SHEET 2.

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WILLIAM S. HOLDAW'AY AND HALL I-I. HOLDAWAY, 0F PROVO, UTAI-I, ASSIGNORS, BY MESNE ASSIGNMENTS, T0 DETROIT-DELAWARE MANUFACTURING COMPANY, 0F DETROIT, MICHIGAN, A CORPORATION OF DELAWARE.

BUTTON-SEWING ATTACHMENT.

Specification of Letters Patent.

Patented May 2, 1911.

To all whom t may concern:

Be it known that we, VILLIAM S. HOLD- AwAr and HALL H. HonDAwAY, citizens of the United States, residing` at Provo, in the county of Utah and State of Utah, have iuvented certain new and useful Improvements in Button-Sewing Attachments, of which the following is a specication.

The present invention relates to improvements in sewing machines, and especially to that class of machines adapted for sewing buttons, hooks, eyelets, etc. to fabrics.

The object of the invention is to provide an attachment complete in itself, which may be applied to sewing machines of standard make, and which will be operated by the reciprocation of the needle of the sewing machine.

A further object is to provide a device which will hold the fabric and button to be secured thereto, and move said fabric and button so that the holes in the button are brought successively in the reciprocatory path of movement of the sewing machine needle, while the button is being sewed to the fabric.

To this end the device comprises means for producing an oscillating and reciproeating movement in the operating parts of the device, these parts being actuated from the reciprocating sewing needle, in order to move a button containing four holes, for instance, in position to be stitched by the needle.v

In the accompanying drawings we have illustrated one example of the physical embodiment of our invention constructed according to the best mode we have so far devised for the practical application of the principles of the invention.

Figure 1 is a plan view of a device embodying the novel features and combinations of elements of the invention. Fig. 2

is a sectional view on line 2 2 Fig. 1. Fig. 3'

is a sectional view on line 3 8 Fig. 1. Fig. 4 is a plan view with the top plate of the attachment removed some parts being shown in section. Fig. 5 is a sectional view on line 5 5 Fig. 1. Figs. 6, 7, and 8 are detail view of parts of the device.

Referring to the drawings, the numeral 1 designates a bed plate and 2 the top plate of the device, the actuating and operating mechanism being supported by the plates as will be described.

The attachment, and its mechanism, are secured to a suitable portion of the sewing machine, and the device is actuated from the reciprocating needle of the sewing machine which rocks the shaft 3, through contact with the lug 4 on said shaft. This shaft is supported on the top plate 2 by means of the upright brace 5, and carries a pair of pawls 6 and 7, pivoted thereto at 8 and 9 respectively, so that the pawls receive a rocking or oscillating movement from the shaft and are capable of a swinging movement longitudinally thereof in their contact with the two ratchet wheels 10 and 11, which are rotatably mounted on shafts or pins 12 and 13. The top plate is cut away at 14 and 15 to permit the movements required of the two pawls, and the pawls are pressed apart by means of an interposed spring 16, which holds the pawls against their individual ratchet wheels. A lever 17 is pivoted in the top plate at 18 by means of which the pawl 6 may be rendered inoperative if desired, in order to limit the device to one movement as will be described.

The oscillatory carrier is composed of two slotted arms 19 and 20, which are formed with the complementary slots 21 and 22. and when properly clamped together as will be described. move as a unitary structure.

Upon the portion 19 of the carrier, brace 23 is secured, and this brace supports the clamp plate 24 which is hinged at 25 to the brace.` A spring 26 holds the plate 24 in suspension, and the pivoted eccentric 27, supported on post 28, may be moved by handle 29 to depress the clamp plate, a lug 30, forming a convenient Contact for the eccentric or cam. The clamp plate is slotted at 31 t0 permit movement, and is also slotted at 32 to permit passage of the sewing machine needle. Complementary slots 33 and 34 are formed in the member 19 and the bottom plate respectively. By means of the cam 27 and connections, the fabric and button t0 be secured thereto, are clamped and held between the plate 24 and the portion 19 of the carrier.

In order to unite the two members of the carrier we utilize the threaded pivotal bolt 35 and clamping nut 36. The bolt comprises a pair of arms 87 having their ends upturned, and a projecting lug 38, integral therewith. As seen clearly in F ig. 3 the bolt 35 passes loosely through the slots 21 and 22 in the members 19 and 20, thus pern'iitting a longitudinal movement of the carrier (as seen in Fig. 1) and the pivot lug 3S permits an oscillatory or swinging movement of the carrier, with lug 3S as a center. A clamp nut 40 is interposed between the carrier and nut 36 to hold the two members of the carrier together. The base plate 1 is slotted at 41 to permit the longitudinal movement of the carrier, said slot acting as a guideway for the movable-pivot lug 38.

The swinging or oscillatory movement of the carrier is imparted thereto through the medium of the triangular shaped cani plate 42, which is integral with the ratchet wheel 11, and located within the walls 48 of the member 20. The walls 43 bound an open space for the movement of the cam plate, and are formed with contact faces 44,44, against which the cam plate points alternately strike as the cam is rotated. The reciprocating or longitudinal movement of the carrier is produced from the cam plate 45 which is integral with the ratchet wheel 10, being supported on pintle 12. A the cam is rotated it strikes the pin 4G on shifting arm 47, which arm is guided in its longitudinal movement by the slot 48 co-acting with the pin 12. The shift arm is pivoted at 49 to the pivoted lever 50, which is in turn pivoted to 51 to the carrier member 19. AThe slot 52 in lever 51 accommodates the movable center 52, which is a. part of the two arm lever 53. This lever 53 is pivoted at 54 to the bed plate, and has connected thereto the link 55, pivotally mounted on nut 40.

In operation, the sewing machine needle strikes the lug 4, on its up stroke. This action imparts a rocking motion to the rock shaft 3 which oscillates the two pawls 6 and 7 The two pawls rotate their respective ratchet wheels and cam members, step by step. The cam 42 imparts a swinging or oscillatory movement to the carrier on the bolt-lug 3S as a center, and the cam 45 reciprocates the carrier, with the movable point 52 as a center. A spring 55 may be provided to return the parts to original position.

It will be undestood that the movements of the diiferent parts may be varied by changing the centers of movements. Thus, by moving the carrier, through its slots, with relation to the pivotal bolt 38, the transverse movement at the end of the carrier may be decreased or increased. By changing the center 52 in the slot 52, the movement of the carrier in longitudinal direction may be varied, to suit different sizes of buttons, or for other purposes.

From the above desc iption taken in connection with t-he drawings it is obvious thatwe have produced a device which fuliils the conditions set fort-h as the purpose of our invention. Y

What we claim as new and desire to secure by Letters Patent is:

1. Tn a device of the character described, the combination with a base plate, of a suitably actuated rock shaft Vsupported thereabovo, a pair of pawls secured to the shaft and rocked thereby, a carrier arm, a cam wheel operated by one of the pawls for imparting a reciprocal movement to the arm, and a three point cam wheel operated by the other pawl for imparting an oscillatory movement to the said arm.

2. In a. device of the character described, the combination with the base plate, of a pair of ratchet wheels revolubly mounted thereon. cams secured to and adapted to move with the ratchet wheels, a rock shaft supported above the plate, pawls carried by the sha ft and adapted to actuate the wheels, a carrier arm, mechanism adapted to be operated by the revolution of the cam of one of the ratchet wheels to impart a reciprocal movement to the carrier arm, and mechanism actuated by the cam of the other wheel for imparting an oscillatory movement to the arm, said wheels being each actuated by their own pawl and being capable of independent operation.

3. The combination with a base plate, of a rock shaft carried thereby, a sectional extensible carrier arm, a pivotal support therefor having wings engaging said sections, means for clamping the sections to the support and means operated by the rock shaft for rocking or oscillating the arm on the support as a pivot.

4. In ay device of the character described, the combination with a slotted base plate, of a carrier arm mounted thereon, said arm having a pivot member clampingly secured thereto and mounted in the slot, a crank lever mounted on the base plate, a link connecting one end thereof to the pivot member, a pin carried by the free end of the lever, a lever pivotally secured to the carrier arm and having a slot formed therein in which the pin on the crank lever is received, means for imparting an oscillatory movement to the carrier arm, upon said movement the pin on the crank lever moving in the slot of the pivoted lever and being undisturbed thereby, and means for rocking the pivoted lever to reciprocally movel the carrior arm, said lever then bearing against and rocking the crank lever.

In a device of the character described, the combination with a slotted base plate, of a carrier arm mounted thereon, said arm having a pivot member clampingly adjustable longitudinally thereof and mounted in the slot in the base plate, a crank lever mounted on the base plate, a link connecting one end thereof to the pivot member, a pin carried by the free end of the crank, a lever pivotally secured to the carrier and having a slot formed in one end in which the pin of the crank is received, ratchet Wheels mounted on the base plate and bearing cam members, a suitably actuated rock shaft mounted above the base plate, pavvls carried by said shaft and adapted to actuate the ratchet Wheels to revolve the same, one of said cam members contacting With the end of the carrier arm to impart an oscillatory movement thereto, the arm swinging on its pivot and the pin on the crank moving in the slot in the lever Without contacting therewith and being undisturbed thereby, and the other cam member rocking the said lever to cause it to impart a reciprocal movement to the carrier arm, the movement of the lever causing it to bear against and rock the crank lever and hold it and thus through the medium of the link, the pivot, in adjusted position.

6. rlhe combination with a base plate having a slot formed therein, of a carrier arm having` a pivot adapted to move in and be guided by said slot, a rock shaft carried by the plate, means operated by the shaft for rocking the carrier arm on its pivot` a cam Wheel mounted on the plate, a shifting arm mounted on the plate and adapted to be reciprocally moved by said cam, connections between the shaft and the cam Wheel for rotating the latter, a lever pivotally secured intermediate its length to the carrier arm and having` one end pivotally secured to the shifting arm, said pivoted lever having a segmental slot formed in its other end, and an adjustable stud engaged in said segmental slot.

In testimony whereof We affix our signatures, in presence of tWo Witnesses.

VILLIAM S. HOLDAVVAY. HALL H. HOLDAWAY.

Witnesses:

T. C. LAnsoN, L. LisoNBnn.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

